Remove fakeclient and use testenv for flux cmd tests

Remove use of the fake client, and replace with a real client connected to the
testEnv.

This required fixes to the yaml files as the testEnv has stricter verifcation
of objects. This also meant it was not possible to test a GitRepository with
a missing artifact since that is not a valid state.

The tests are slower than before, taking around 7-10 seconds each because the
 testEnv is setup and destroyed for every test. These will be sped up in a
 follow up PR.

Signed-off-by: Allen Porter <allen@thebends.org>

cmd/flux/main.go

@@ -25,7 +25,6 @@ import (
 	"github.com/spf13/cobra"
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
 
-	"github.com/fluxcd/flux2/internal/utils"
 	"github.com/fluxcd/flux2/pkg/manifestgen/install"
 )
 
@@ -127,18 +126,6 @@ func NewRootFlags() rootFlags {
 	return rf
 }
 
-type rootContext struct {
-	kubeManager utils.KubeManager
-}
-
-var rootCtx = NewRootContext()
-
-func NewRootContext() rootContext {
-	var rc rootContext
-	rc.kubeManager = utils.DefaultKubeManager()
-	return rc
-}
-
 func main() {
 	log.SetFlags(0)
 	configureKubeconfig()